IBM DS4800 - Cabling the Storage Expansion Enclosures to a DS4800 Storage Subsystem; One DS4800 to Seven EXP810 and Eight EXP710 Storage Expansion Enclosures - Recommended Cabling

enclosures operating at 2 Gbps Figure 55 shows the recommended cabling
scheme.
Cabling the storage expansion enclosures to a DS4800 storage
subsystem
Complete the following steps to cable the storage expansion enclosures to a
DS4800 Storage Subsystem:
Install an SFP module in the drive mini hub port on the back of the DS4800 Storage
Subsystem, as shown in Figure 56 on page 77.
Connect an LC-LC fiber-optic cable into the SFP module, as shown in Figure 57 on
page 77.
Figure 55. One DS4800 to seven EXP810 and eight EXP710 storage expansion enclosures — Recommended cabling
76 IBM System Storage DS4800 Storage Subsystem: Installation, User’s, and Maintenance Guide